Specifications include, but are not limited to: 24x80 3-PLY LINK PANEL, UL3242004** 20x30x1 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 25x40 3-PLY LINK PANEL, UL3252002*** HVAC OPTI BELT, 5VX690 HVAC OPTI BELT, BX53 25X100 3-PLY LINK PANEL, UL3252005** 18x24x4 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter HVAC OPTI BELT, BX124 HVAC OPTI BELT, BX90 24x48 G3 3-PLY LINK PANEL, UL3242402** 20X128 3-PLY LINK PANEL, UL3201608 16x48 3-PLY LINK PANEL, UL3162402* HVAC OPTI BELT, BX75 20X20 3-PLY PANEL, UP3202001 HVAC OPTI BELT, 5VX710 16X60 3 PLY LINK PANEL, UL3162003 16x20x4 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 20x25x2 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 20x20x4 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 20x80 3-PLY LINK PANEL, UL3202004** (20X82)*** 20x25x4 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 24x24x15 QUALITY SEAL POLYESTER POCKETED FILTER 2" 24x24x2 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 16x25x4 FARR 30/30 MERV 8 & MERV 8-A HC Pleated Filter 20x20x12 Pocket Filter MERV 14, 1320 CFM 12x24x12 AirFlow V-Cell 4V AFV95-2412** 20x24x12 AirFlow V-Cell 4V AFV95-0412** Roll Fiter Media 3 ply - Cut & Bagged 24x24x20 QUALITY SEAL POLYESTER POCKETED FILTER 2" 24x24x12 AirFlow V-Cell 4V AFV95-4412**